Invention Grant
- Patent Title: Methods for production of high impact polystyrene having an improved rubber morphology
-
Application No.: US17231242Application Date: 2021-04-15
-
Publication No.: US11795259B2Publication Date: 2023-10-24
- Inventor: Carlos de Anda , Giovanni Trimino , Bradley Stiles , Jose Sosa
- Applicant: FINA TECHNOLOGY, INC.
- Applicant Address: US TX Houston
- Assignee: FINA TECHNOLOGY, INC.
- Current Assignee: FINA TECHNOLOGY, INC.
- Current Assignee Address: US TX Houston
- Agency: CONLEY ROSE, P.C.
- Main IPC: C08F279/02
- IPC: C08F279/02

Abstract:
A process for producing high impact polystyrene comprising introducing to a reactor a partially-polymerized mixture comprising at least one vinyl aromatic monomer, an elastomer and reacted vinyl aromatic monomer wherein the partially-polymerized mixture has not undergone phase inversion; polymerizing the partially-polymerized mixture in the reactor to the phase inversion point to form a phase-inverted mixture; recovering a portion of the phase-inverted mixture from the reactor wherein the phase-inverted mixture comprises high impact polystyrene; and introducing another portion of the phase-inverted mixture to another reactor.
Public/Granted literature
- US20210324128A1 Methods for Production of High Impact Polystyrene Having an Improved Rubber Morphology Public/Granted day:2021-10-21
Information query